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Use Formulas in Excel – sums

An Excel tutorial by Peter Kalmstrom

Excel iconIn the demo below Peter Kalmstrom goes through the basics of Excel formulas. The possibility to tell Excel to calculate is a crucial feature and the most important reason to use it, and here Peter explains how to tell the program what to count on = how to create a formula.

When you use a formula Excel calculates with the values of the cells you have given in thet formula and gives the result in a separate cell. When the values in the cells are changed the figure in the result cell will change automatically.

Excel sum formula

Excel is used for all kinds of calculations – from personal budgets to very advanced prognoses – but the calculations cannot be accurate if the formulas are not correct. With this demo Peter wants to set Excel new beginners on the right track.

Peter shows:

  • What kind of information the cells in an Excel spreadsheet can contain and how you can see if Excel treats data as text or numbers.
  • How you should NOT use Excel for calculations
  • How to calculate a sum using a formula with the plus sign
  • How to calculate a difference using a formula with the minus sign
  • The functions of "sum", parenthesis and colon in formulas
  • Excel AutoSum button How to use the AutoSum button
Peter uses Excel 2013 for his demo, but the formulas are the same for earlier versions of Excel.

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